Shoe upper



FIG. 1 is a perspective view of a shoe showing our new design;

FIG. 2 is a right side plan view thereof;

FIG. 3 is a left side plan view thereof;

FIG. 4 is a front plan view thereof;

FIG. 5 is a rear plan view thereof; and,

FIG. 6 is a top perspective view thereof.

The surfaces that are not shown form no part of the claimed design. 

The ornamental design for a shoe upper, as shown and described. 